The teenager was originally charged with four felonies, which carried sentences of about three years in custody, if convicted.

But the teenager had no previous criminal record and was willing early on to admit to the crime, Wilson said.

The teenager, who is not being identified by The Bee because he is a minor, is the first to be sentenced in four separate incidents of hacking into school computers over the past year. He is one out of seven students who are either charged or under investigation by school or law enforcement authorities.

"There was no permanent damage and it seemed an appropriate resolution to the case," Wilson said. "Our hope is that he learned his lesson from being arrested and being in court."

As the student sat next to his parents in court, Juvenile Court Referee Daniel Horton admonished him never again to commit such an act.

Horton, acting as a judge, asked the boy if he knew how shocked his parents were as a result of his actions. The teenager, who had obtained graduation credits before his arrest and plans to attend college this fall, said he did.

Defense attorney David Dratman couldn't be reached for comment after the hearing.

According to Natomas school district officials, parents of the two teenagers have paid $500 in restitution to cover the school's losses to the computer break-ins in January and February.

After the grades were changed, the two teenagers deleted school files, causing a computer system crash, which led to their arrests in March.

The second teenager, who was arraigned on the same felony charges May 2, is due back in court June 14.

Three Sheldon High School students have been arraigned on charges of computer crimes for allegedly using computer hardware and software hacking equipment to change grades last year.

Investigative reports of a student from Laguna Creek High School who was expelled in February are expected to be handed to the District Attorney's Office this week for possible charges, Wilson said.

The 17-year-old senior is also accused of using hacking equipment to change grades and gaining access to employee records, exposing about 6,000 employees to potential identity theft.

The latest incident, reported two weeks ago, involves another 17-year-old Laguna Creek High School student who is accused of changing grades of about three dozen students. Investigative reports in that case are expected Wednesday, said Wilson, who will review the files for possible charges.